Dimensions: Click here for dimensions. A separate window will open with the dimensions.

Applications

This diff cover fits the GM with 7 1/2" (7.5") or 7 5/8" (7.625") ring gear 10 bolt differential. Typical applications include the following. Be aware that for each model and year there maybe more than one rear axle possible. See also the PML GM 10 bolt 8½ cover.

Chevy S10, 1983 to 2004

Chevy S10 Blazer, 1983 to 2004

GMC S15, 1983 to 1994

GMC Sonoma, 1991 to 2004

GMC Jimmy, 1984 to 2004

Chevy Astro Van, 1982 to 2005

GMC Safari Van, 1982 to 2005

Camaro, 1993 to 2002

Firebird, 1993 to 2002

Some Mazda trucks

Some vehicles have brackets/cables on or near the stock cover. PML does not have any information on modify these to work with our larger cover. Such modifications are the responsiblity of the installation. See our Return Policy.

Bolt Information

PML includes mounting bolts with all differential covers. PML provides bolts that are longer than the stock bolts since the flange on PML's cover is much thicker than stock. The bolts with the stock cover will not work.

GM has used four different bolts on these differentials so to complete your order, we need to know which bolts you have. These differentials have used both metric and standard cover bolts. The bolt length has not been consistent either. When ordering one of these covers, you will need to pull one of your stock bolts out (a top bolt is best) and measure the length and determine whether it is metric or standard.

Bolt length is measured from the underside of the head (where a washer would sit) to the tip. If the bolts are metric, the length will be 21mm or 16mm. If the bolt is standard, the length will be 5/8 inch or 7/8 inch.
These images show how to measure the bolt length. Click on small image to view larger in a new tab or window.

A bolt head with lines or letters on it is typically standard. A bolt with numbers such as 5.8, 9.8, 10.9, or 12.9 is likely to be metric.

Metric bolts will have 20 threads per inch. Standard ones will have 18 threads per inch. Since the bolts do not have a full inch of threads, try counting the number in a half an inch and multiply by two.

We know this is a hassle, but we do not want to send the wrong bolts or charge everyone a lot of extra money to cover sending all possible bolts with each cover. Watch the video for more informations on checking your bolts.

PML Differential Cover Compared to Stock

Click on image to view larger.

These images show this PML differential cover compared to the stock cover.

This image compares the depth of both PML GM 7 1/2, 7 5/8 inch rear differential covers and the stock cover. Click on image to view larger in a new tab or window.

Installations

Picture of a Camaro Z28 with this differential cover installed. Note the location of the sway bar to the cover. (Click on image for larger picture.)

Please use the dimensions and check for sway bar clearance before ordering.

Temperature Sensor

This cover can be machined for a temperature sensor. The sensor will be located on the face of the cover and will point toward the rear of the vehicle. Please call to order if you would like a cover with a temperature sensor location.

For a larger picture, please click one of the above images. A separate window will open
showing a bigger picture. (The larger pictures take a minute to display.)